Backtrace

WARNING: CPU: 4 PID: 178 at kernel/workqueue.c:2598 check_flush_dependency+0xa0/0x130
Modules linked in: uinput rfcomm ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT tun bridge stp ip6t_REJECT llc nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 libcrc32c ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmnet(OE) ppdev parport_pc parport cmac bnep vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) sunrpc snd_hda_codec_hdmi snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_skl_ipc snd_soc_sst_ipc snd_soc_sst_dsp snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek snd_compress snd_hda_codec_generic ac97_bus snd_pcm_dmaengine x86_pkg_temp_thermal intel_powerclamp coretemp snd_hda_intel kvm_intel snd_hda_codec iTCO_wdt snd_hda_core
 iTCO_vendor_support mei_hdcp iwlmvm dell_laptop intel_rapl_msr ledtrig_audio snd_hwdep mac80211 kvm dell_smm_hwmon snd_seq irqbypass snd_seq_device libarc4 uvcvideo intel_cstate btusb intel_uncore videobuf2_vmalloc iwlwifi btrtl intel_rapl_perf videobuf2_memops snd_pcm videobuf2_v4l2 rtsx_usb_ms btbcm dell_wmi btintel videobuf2_common snd_timer dell_smbios memstick dcdbas bluetooth snd dell_wmi_descriptor wmi_bmof cfg80211 videodev i2c_i801 soundcore ecdh_generic joydev mc idma64 rfkill ecc mei_me processor_thermal_device intel_xhci_usb_role_switch mei intel_rapl_common intel_lpss_pci roles intel_soc_dts_iosf intel_lpss intel_pch_thermal int3403_thermal intel_hid sparse_keymap acpi_pad int3402_thermal int3400_thermal int340x_thermal_zone acpi_thermal_rel ip_tables dm_crypt i915 i2c_algo_bit drm_kms_helper rtsx_usb_sdmmc crct10dif_pclmul mmc_core crc32_pclmul crc32c_intel drm nvme ghash_clmulni_intel nvme_core serio_raw r8169 hid_multitouch rtsx_usb wmi i2c_hid
 pinctrl_sunrisepoint video pinctrl_intel fuse
CPU: 4 PID: 178 Comm: kswapd0 Tainted: G           OE     5.3.7-301.fc31.x86_64 #1
Hardware name: Dell Inc. Inspiron 5570/0D65FD, BIOS 1.2.1 01/11/2019
RIP: 0010:check_flush_dependency+0xa0/0x130
Code: 8d 8a 18 07 00 00 49 89 e8 48 8d 8b b0 00 00 00 4c 89 ca 48 c7 c7 28 0c 13 8e 48 89 04 24 c6 05 83 2c 44 01 01 e8 9e 2b fe ff <0f> 0b 48 8b 04 24 eb 10 4c 89 e7 e8 80 81 00 00 41 f6 44 24 25 08
RSP: 0018:ffffa56fc02ab8d0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: ffff93d8cc00ce00 RCX: 0000000000000000
RDX: 0000000000000063 RSI: ffffffff8ebe7883 RDI: 0000000000000046
RBP: ffffffffc06d0780 R08: 0000f31f788d72de R09: 0000000000000063
R10: ffffffff8ebe7c00 R11: 000000008ebe786b R12: ffff93d8cb195f40
R13: ffff93d8cf62d700 R14: 0000000000000001 R15: 0000000000000013
FS:  0000000000000000(0000) GS:ffff93d8cf700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbda8491000 CR3: 0000000848152003 CR4: 00000000003606e0
Call Trace:
 __flush_work+0x92/0x1c0
 ? enqueue_hrtimer+0x36/0x90
 ? hrtimer_start_range_ns+0x192/0x2d0
 __cancel_work_timer+0x107/0x190
 ? _cond_resched+0x15/0x30
 ? synchronize_irq+0x3a/0xa0
 ? fwtable_write32+0x1a0/0x210 [i915]
 gen6_disable_rps_interrupts+0x7f/0xa0 [i915]
 gen6_rps_idle+0x1a/0xe0 [i915]
 intel_gt_park+0x54/0x60 [i915]
 __intel_wakeref_put_last+0x17/0x50 [i915]
 __engine_park+0xbc/0xd0 [i915]
 __intel_wakeref_put_last+0x17/0x50 [i915]
 i915_request_retire+0x1aa/0x370 [i915]
 ring_retire_requests+0x4e/0x60 [i915]
 i915_retire_requests+0x43/0x80 [i915]
 i915_gem_shrink+0x355/0x510 [i915]
 i915_gem_shrinker_scan+0x63/0x110 [i915]
 do_shrink_slab+0x154/0x2c0
 ? check_preempt_curr+0x4a/0x90
 shrink_slab+0xac/0x2b0
 ? __switch_to_asm+0x34/0x70
 shrink_node+0xf5/0x490
 balance_pgdat+0x2db/0x530
 kswapd+0x1fb/0x3c0
 ? finish_wait+0x80/0x80
 kthread+0xfb/0x130
 ? balance_pgdat+0x530/0x530
 ? kthread_park+0x80/0x80
 ret_from_fork+0x35/0x40